The following circuit is can be used to control the speed of sewing machine or mixer motor. It will be effective to use simple half wave motor speed control with small universal ac/dc motors. The maximum current capability is the two amps RMS. The control gives a perfect torque characteristics to the motor. This is [...]
LM10 integrated circuit can be used to create a meter amplifier. The accuracy of full-scale sensitivity of this circuit is good for 15°C to 155°C at 10mV and 100nA. Here is the schematic diagram : The resistor R4 is used to balance the bias current, and the R5 is for correcting the offset voltage error.The [...]
This circuit is an ultra high input impedance AC unity gain amplifier and used to get unity gain from ultra high input impedance AC. Here is the schematic : 2N4416 IC is used to reduce the input capacitance. The IC has low capacitance. It’s operated as a source follower with bootstrapped gate bias resistor and [...]
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